Scan for new devices in Solaris

This is how to tell Solaris to look for new devices when booting - append a '-r' to the kernel boot arguments:

Select the Solaris entry GRUB menu that you want to boot, to edit, enter e
Select the "kernel /platform" line, to edit that again enter e
Add to the end of the 'kernel' line a space followed by -r
Press enter key to accept the change
Press b to boot

Via: http://blogs.sun.com/harcey/entry/solaris_x86_vmware_adding_a